The invention discloses an
organic light emitting device, which comprises a substrate, an
anode, a hole transmission layer, an
electron blocking layer, a light emitting layer, an
electron transmission layer, an
electron injection layer and a
cathode stacked sequentially. Material of the hole transmission layer comprises poly-3-hexylthiophene and a
dopant doped in the poly-3-hexylthiophene, wherein the
dopant is at least one selected from 2, 3, 5, 6-tetrafluoro-7, 7 ', 8, 8'-tetracyanoquino-dimethane, 1, 3, 4, 5, 7, 8-
hexafluoride-tetracyano-dimethyl
naphthalene quinine, 2, 2'-(2, 5-dicyano-3, 6-difluorocyclohexane-2, 5-
diene-1, 4-di idene) di-
malononitrile and 2, 3, 6, 7, 10, 11-hexacyano-1, 4, 5, 8, 9, 12-hexaazatriphenylene. The light emitting efficiency of the
organic light emitting device is high. The invention also provides an
organic light emitting device manufacturing method.